186 



FAUNA ANTIQUA SIVALENSIS. 



VIII. ON THE FOSSIL EQUID^E OF THE SEWALIK 



HILLS. 



No memoir on the fossil Eqiiiclae of India was ever pub- 

 lislied by Dr. Falconer. Six new species are figxn-ed in the 

 ' Famia Antiqna Sivalensis,' two of which are from the 

 Sewalik hills, viz. Eqtms Sivalensis and Hippotherium Antilo- 

 pinum, the latter presenting the form of a horse with the 

 attenuated proportions of an antelope. Two other species, 

 Equus Namadicus and Eqtms Palceonus,^ are from the valley 

 of the JSTerhndda, and there are two doubtful species from 

 Ava and the Mti Pass. The reader is referred to the 

 descriptions of the Plates in the Fauna (LXXXI. to LXXXV.) 

 and to a memoir on sub-Himalayan fossils by Messrs. Baker 

 and Dui-and, published in the ' Journal of the Asiatic Society ' 

 for October 1835, vol. iv. p. 568, and also to the following 

 extracts from the catalogue of the Museum of the Asiatic 

 Society in Calcutta. — [Ed.] 



Descriptions by Dr. Falconer of Fossil Equid^ in the Museum 

 OF THE Asiatic Society of Bengal. 



A. From the Sewalik Hills. 



N'o. 303. Equus Sivalensis. — Fine specimen, connected by matrix 

 to anothei" fossil comprising both horizontal rami of the lower jaw from 

 1)ehind the molars on to the middle of the symphysis, in two pieces ; 

 the rami united by their inferior border to the shaft of a rhinoceros 

 humerus, leaving their sides and the lines of molars free and in relief. 



The whole series of six molars is present on either side, adult and 

 well-worn but not aged, those on the right side having little matrix on 

 the crowns of the first four ; the two backmost, more or less covered, 

 as also the greater part of the crowns on the left side. The left ranms 

 is depressed somewhat by a crush beloAV the level of the right. The 

 teeth resemble in size and pattern of crown those figured in the Faun. 

 Antiq. Sival. PI. LXXXII. fig. 2. The front fragment passes nearly 

 through the middle of the symphysis, showing in section the included 

 portions of two canines, one on each side. The jaw is nearly the size 

 of that of an English horse cranium in the Asiatic Society's Museum, 



' At page 22, the specimens of Equus 

 PalaeoHus are erroneously stated as being 

 derived from the Sewalik hills. Accordi n'jc 



to M. Lartct, E. Palaonus is proLably the 

 yoiuig individual of eitlier E. Sivalensis 

 or E. Namadicus. Sec \m\v 2. p. 22. — [Ed.] 



